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Laetmogonidae
Laetmogonidae is a family of sea cucumbers Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian .... Genera The following genera are recognised in the family Laetmogonidae: * '' Apodogaster'' Walsh, 1891 * '' Benthogone'' Koehler, 1895 * '' Gebrukothuria'' Rogacheva & Cross, 2009 * '' Laetmogone'' Théel, 1879 * †'' Palaeocaudina'' Boczarowski, 1997 * '' Pannychia'' Théel, 1882 * '' Psychronaetes'' Pawson, 1983 References Echinoderm families Extant Early Cretaceous first appearances {{Holothuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laetmogonidae
Laetmogonidae is a family of sea cucumbers Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian .... Genera The following genera are recognised in the family Laetmogonidae: * '' Apodogaster'' Walsh, 1891 * '' Benthogone'' Koehler, 1895 * '' Gebrukothuria'' Rogacheva & Cross, 2009 * '' Laetmogone'' Théel, 1879 * †'' Palaeocaudina'' Boczarowski, 1997 * '' Pannychia'' Théel, 1882 * '' Psychronaetes'' Pawson, 1983 References Echinoderm families Extant Early Cretaceous first appearances {{Holothuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Cucumbers
Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian () species worldwide is about 1,717, with the greatest number being in the Asia-Pacific region. Many of these are gathered for human consumption and some species are cultivated in aquaculture systems. The harvested product is variously referred to as '' trepang'', ''namako'', ''bêche-de-mer'', or ''balate''. Sea cucumbers serve a useful role in the marine ecosystem as they help recycle nutrients, breaking down detritus and other organic matter, after which bacteria can continue the decomposition process. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue. In some species these can sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoderm Families
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. Geolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
